Volvo P1800

Hello, I’m still new here, so if I ask “wrong” questions, I’m sorry for this. I’m looking for a Volvo P1800 (S or E prefers, no ES ). Now to my questions: What are realistic prices for this model (I’d like a ready-to-drive model, but you can also restore something)? I don’t have any real experiences with the restoration of cars (only with steam locomotives ). Can I start with such a vehicle? ändler and spare parts? You see, I have a lot of questions at the moment. Maybe someone can help me. Greetings, Marius